Company lists · Data refreshed November 2026

Top 25 Contact center optimization companies worldwide

Name: Contact center optimization companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 5, 2026 8,203 companies tracked

RevenueBase identified 8,203 company matches for contact center optimization companies worldwide as of November 2026 and tracks 454,911 professional contacts across them, including 50,200 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for contact center optimization companies worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 5, 2026. Country and city lists for contact center optimization companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built

8,203Companies

454,911Contacts tracked

50,200Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest contact center optimization companies worldwide

Ranked by team size

Top 25 of 8,203 company matches for contact center optimization companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Foundever	Exact match	Miami, FL, United StatesHQ recorded Nov 5, 2026	10001+	37,107 contacts →
	Exact match “Foundever® is the next-generation service leader reinventing customer experience (CX).” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2	AEC	Exact match	Belo Horizonte, BrazilHQ recorded Nov 5, 2026	10001+	22,678 contacts →
	Exact match “A AeC é apontada consistentemente como a líder brasileira na entrega de soluções de experiência do cliente e gestão de processos terceirizados.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3	Startek	Exact match	Denver, United StatesHQ recorded Nov 5, 2026	10001+	16,728 contacts →
	Exact match “A global customer experience (CX) management solutions provider, Startek® delivers best-in-class omnichannel CX, digital transformation and enterprise tech services for leading…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4	Turkcell Global Bilgi	Exact match	Beyoglu, TürkiyeHQ recorded Nov 5, 2026	10001+	6,889 contacts →
	Exact match “Bir Turkcell grup şirketi olarak yılında kurulduğumuzda amacımız hep eşsiz bir müşteri deneyimi yaşatmaktı.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5	Afni, INC	Exact match	Bloomington, United StatesHQ recorded Nov 5, 2026	10001+	6,716 contacts →
	Exact match “When people reach for their phones, use laptops, or grab their tablets, Afni's contact center teams are there to provide prompt and friendly help.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6	Eficacia	Exact match	Cali, ColombiaHQ recorded Nov 5, 2026	10001+	5,573 contacts →
	Exact match “Incrementamos la productividad y eficiencia de nuestros clientes- Más de 40 años de experiencia en el mercado- Líderes en Soluciones de Mercadeo, Trade Marketing, Ventas y Gestión…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7	Fusion CX	Exact match	Norcross, QC, United StatesHQ recorded Nov 5, 2026	10001+	5,260 contacts →
	Exact match “At Fusion CX, we revolutionize customer experience by blending innovative technology and human connection.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8	Callink	Exact match	Uberlândia, BrazilHQ recorded Nov 5, 2026	5,001-10,000	4,874 contacts →
	Exact match “Mais que call center: soluções que transformam o seu negócio e a jornada dos clientes!” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9	Call Center Services International	Exact match	San Diego, United StatesHQ recorded Nov 5, 2026	1,001-5,000	4,858 contacts →
	Exact match “CCSI specializes in high‑performance, cost‑efficient contact center solutions supported by a world‑class bilingual workforce and state‑of‑the‑art infrastructure in Mexico.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10	Apex America	Exact match	Córdoba, ArgentinaHQ recorded Nov 5, 2026	10001+	4,849 contacts →
	Exact match “At Apex America, we are a Next Generation BPO and a global strategic partner specialized in elevating customer service standards.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11	Continuum Global Solutions	Exact match	Dallas, TX, United StatesHQ recorded Nov 5, 2026	5,001-10,000	4,798 contacts →
	Exact match “With a fresh name and decades of contact center expertise, we’re dedicated to collaborative partnerships, understanding your unique needs, and tailoring solutions for an enhanced…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12	Ibex. Pakistan	Exact match	Karachi, PakistanHQ recorded Nov 5, 2026	10001+	4,555 contacts →
	Exact match “ibex.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13	Vikstar Contact Center	Exact match	Sao Paulo, BrazilHQ recorded Nov 5, 2026	10001+	4,363 contacts →
	Exact match “Vikstar is one of the biggest contact centers of Brazil.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14	Sercom	Exact match	Taboão Da Serra, BrazilHQ recorded Nov 5, 2026	5,001-10,000	4,283 contacts →
	Exact match “Founded in 1993, since the beginning Sercom has stood out in the Contact Center Services.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15	SX Negócios	Exact match	Novo Hamburgo, BrazilHQ recorded Nov 5, 2026	5,001-10,000	4,016 contacts →
	Exact match “Somos a Pulse Client Experts, uma empresa em constante evolução, impulsionados pela vontade de fazer acontecer.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16	EPX Eperformax Contact Centers	Exact match	Pasay City, PhilippinesHQ recorded Nov 5, 2026	5,001-10,000	3,904 contacts →
	Exact match “ePerformax is a high-performing contact center & BPO that provides world-class, omnichannel service and support to a select group of Fortune companies and their customers.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17	Armatis	Exact match	Paris, FranceHQ recorded Nov 5, 2026	5,001-10,000	3,851 contacts →
	Exact match “For 40 years, Armatis, European expert in customer relationship and process outsourcing, has been transforming brands' ambitions into tangible and measurable results.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18	TMKT	Exact match	Poa, BrazilHQ recorded Nov 5, 2026	5,001-10,000	3,730 contacts →
	Exact match “A TMKT é uma empresa de Contact Center que foi fundada em 1991 e se tornou uma referência no mercado de Customer Experience (CX).” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19	Quantrics Enterprises INC	Exact match	Taytay, PhilippinesHQ recorded Nov 5, 2026	5,001-10,000	3,611 contacts →
	Exact match “In the Philippines, Quantrics by NQX is redefining customer experience by bringing together the expertise of a global leader and the passion of world-class Filipino talent.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20	Telvista	Exact match	Dallas, TX, United StatesHQ recorded Nov 5, 2026	1,001-5,000	3,517 contacts →
	Exact match “Email: info@Telvista.com Telvista is a premier provider of contact solutions that drive customer loyalty and create competitive advantage for our clients.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21	Extensya	Exact match	Amman, JordanHQ recorded Nov 5, 2026	1,001-5,000	3,426 contacts →
	Exact match “Extensya is a company that primarily specializes in contact management solutions and business process outsourcing services, with a network of fully equipped contact centers in…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22	VGX Contact Center	Exact match	Montes Claros, BrazilHQ recorded Nov 5, 2026	1,001-5,000	3,262 contacts →
	Exact match “A VGX, é uma empresa 100% brasileira, com 13 anos de atuação e mais de 5.100 colaboradores, consolidada como referência em soluções de Customer Experience,Cobrança, Atendimento…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23	Advanced Call Center Technologies, LLC	Exact match	Berwyn, PA, United StatesHQ recorded Nov 5, 2026	5,001-10,000	3,116 contacts →
	Exact match “Advanced Call Center Technologies, LLC (ACT) is a premier provider of domestic (USA), near shore and far shore outsourced call center services to the financial services, mortgage…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24	Nexa BPO	Exact match	Bogotá D.c, ColombiaHQ recorded Nov 5, 2026	5,001-10,000	2,895 contacts →
	Exact match “Más que un contact center y BPO, somos el partner que asegura que la experiencia de tus clientes sea increíble.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25	TAHTO	Exact match	Goiânia, BrazilHQ recorded Nov 5, 2026	10001+	2,741 contacts →
	Exact match “Com 19 anos de experiência em CX e BPO, somos consultivos e entregamos soluções personalizadas que conectam pessoas e tecnologia para impulsionar seus resultados.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “contact center optimization companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 8,203 contact center optimization companies worldwide

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Contact center optimization companies worldwide at a glance

As of Nov 5, 2026

11.0%Verified-email coverage

55.5Average contacts per company

11-50Median size (employees)

1.8%Largest-city concentration · Sao Paulo

Nov 5, 2026Page data refreshed

Companies by employee count

1-10

2,754

11-50

2,461

51-200

1,655

201-500

632

501-1,000

295

1,001-5,000

282

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for contact center optimization companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “contact center optimization companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 50,200 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on November 5, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Contact center optimization companies by location

59 lists · largest first

Every Contact center optimization companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “contact center optimization companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many contact center optimization companies are there worldwide?

RevenueBase identified 8,203 company matches for contact center optimization companies worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Foundever tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most contact center optimization companies?

The United States leads with 1,582 companies, followed by India (472) and Brazil (374). Every contact center optimization companies list by country and city is linked on this page.

Which city has the most contact center optimization companies?

Sao Paulo leads with 145 company records, followed by London (103) and Lahore (74).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 50,200 professional contacts with verified work emails tracked across these 8,203 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 5, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.